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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2557610c7a60f790051868762f9907822e52b2a40c09d3b9c8b241fe1ea28a01. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


WannaCry


Vendor detections: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2557610c7a60f790051868762f9907822e52b2a40c09d3b9c8b241fe1ea28a01
SHA3-384 hash: 723d8a53a8852ba5c4c35a40bad5b62eae1616b5644149fc5973e852a2877e9d4f1922a89ff4f9a7bcebfe9240412626
SHA1 hash: c1137d8164f8374a6018c7c1910c0984111d3101
MD5 hash: cd04b4d1ff7060806aa972214eff0e54
humanhash: illinois-december-angel-west
File name:cd04b4d1ff7060806aa972214eff0e54
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 00:55:07 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'124 x WannaCry, 7 x Worm.Virut, 2 x Expiro)
ssdeep 98304:d8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2:d8qPe1Cxcxk3ZAEUadzR8yc4
Threatray 65 similar samples on MalwareBazaar
TLSH T19A363364A2E856B8E1720AF10476CB16A7777C56A67A8E1F0750414B0C23F6FEFD0F29
TrID 38.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
20.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
13.0% (.EXE) Win64 Executable (generic) (10523/12/4)
8.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter openctibr
Tags:dll OpenCTI.BR Sandboxed

Intelligence

File Origin
# of uploads :
1
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292114/
Detection(s):
Win.Ransomware.Wanna-9769986-0
Create hunting rule

Win.Ransomware.Wannacryptor-9940180-0
Create hunting rule

Win.Ransomware.Wanacryptor-9942127-1
Create hunting rule

Win.Ransomware.WannaCry-6313787-0
Create hunting rule

Win.Malware.Djwy-6775897-0
Create hunting rule

Win.Ransomware.Wanna-6888027-0
Create hunting rule

Win.Ransomware.Wanna-6888334-0
Create hunting rule

Win.Malware.Djwy-6923377-0
Create hunting rule

Win.Exploit.Doublepulsar-7427328-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe greyware greyware overlay packed packed ransomware shell32.dll wanna wannacry worm
Link:
https://www.filescan.io/uploads/62d7531e7b83f958a968d2eb/reports/1a5e27b8-51a2-42cb-baaf-c3ccfb585f47/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c6d8dd4a-279c-423b-a9f0-26cd77468907
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1036950
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to many different private IPs (likely to spread or exploit)
Connects to many different private IPs via SMB (likely to spread or exploit)
Connects to many IPs within the same subnet mask (likely port scanning)
Detected Wannacry Ransomware
Drops executables to the windows directory (C:\Windows) and starts them
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 669444 Sample: RYpR0dbHs3 Startdate: 20/07/2022 Architecture: WINDOWS Score: 100 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus / Scanner detection for submitted sample 2->62 64 Multi AV Scanner detection for dropped file 2->64 66 4 other signatures 2->66 9 loaddll32.exe 1 2->9         started        11 mssecsvc.exe 2->11         started        15 svchost.exe 2->15         started        17 11 other processes 2->17 process3 dnsIp4 19 cmd.exe 1 9->19         started        21 rundll32.exe 9->21         started        24 rundll32.exe 1 9->24         started        52 20.206.117.25, 445 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 11->52 54 20.206.117.26, 445 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 11->54 56 98 other IPs or domains 11->56 84 Connects to many different private IPs via SMB (likely to spread or exploit) 11->84 86 Connects to many different private IPs (likely to spread or exploit) 11->86 88 Changes security center settings (notifications, updates, antivirus, firewall) 15->88 27 MpCmdRun.exe 1 15->27         started        90 Query firmware table information (likely to detect VMs) 17->90 signatures5 process6 file7 29 rundll32.exe 19->29         started        68 Drops executables to the windows directory (C:\Windows) and starts them 21->68 31 mssecsvc.exe 1 21->31         started        48 C:\Windows\mssecsvc.exe, PE32 24->48 dropped 35 conhost.exe 27->35         started        signatures8 process9 file10 37 mssecsvc.exe 1 29->37         started        50 C:\WINDOWS\qeriuwjhrf (copy), PE32 31->50 dropped 58 Drops executables to the windows directory (C:\Windows) and starts them 31->58 41 tasksche.exe 31->41         started        signatures11 process12 file13 46 C:\Windows\tasksche.exe, PE32 37->46 dropped 70 Antivirus detection for dropped file 37->70 72 Multi AV Scanner detection for dropped file 37->72 74 Machine Learning detection for dropped file 37->74 43 tasksche.exe 37->43         started        signatures14 process15 signatures16 76 Detected Wannacry Ransomware 43->76 78 Antivirus detection for dropped file 43->78 80 Multi AV Scanner detection for dropped file 43->80 82 Machine Learning detection for dropped file 43->82
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2557610c7a60f790051868762f9907822e52b2a40c09d3b9c8b241fe1ea28a01/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-03-02 16:35:11 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
38 of 42 (90.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=evlwcdd2md3zabiynb3c7gihqixffmvebqe5hooiwja74hvcriaq._file
Verdict:
malicious
Similar samples:
016b40a769d4d34da8cdf3bf08a166c3243b659c31c152d3c0899993a7aa8f07
WannaCry
2edd948b703c3249ba424930fe717825ce5c108423b54a4411f05ea77dfd43e9
WannaCry
36dc0aae52946e3f9530c53925301bb8dbfa8216291705d99ef913d55f6ec1c9
WannaCry
4e9378241b5fb2cd33ba7562917608e61ee1d3aeed939eb60e005b9b084380ab
WannaCry
59eee303cf6cbf5bc6019b07f3e49714cbcc8f98639b36d55a9e0289de456c91
WannaCry
5e014f792276618ccc7e7401207fb2758097f440ce28aeb70a024b6ed4251aa1
WannaCry
8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021
WannaCry
9225232799b946c0b18e7270bb29a265e1985d6192c04114cec51fa7b34f11ff
WannaCry
b77665487dd354f83ab68f978f8cc82afa45c8e5083224aa9fbb4d81c4b69f97
WannaCry
d6cb63f23b784915ebd8ac1b195c46251fa1241b324beb99a61d7c4ba27ea99b
WannaCry
+ 55 additional samples on MalwareBazaar
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Link:
https://tria.ge/reports/220720-back3sadel/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Contacts a large (1282) amount of remote hosts
Executes dropped EXE
Contacts a large (3197) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
2557610c7a60f790051868762f9907822e52b2a40c09d3b9c8b241fe1ea28a01
MD5 hash:
cd04b4d1ff7060806aa972214eff0e54
SHA1 hash:
c1137d8164f8374a6018c7c1910c0984111d3101
Link:
https://www.unpac.me/results/449bee66-74c8-4964-a3fc-9dfd2158b4aa/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2557610c7a60/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/2557610c7a60f790051868762f9907822e52b2a40c09d3b9c8b241fe1ea28a01

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:WannaCry_Ransomware
Create hunting rule
Author:Florian Roth (with the help of binar.ly)
Description:Detects WannaCry Ransomware
Reference:https://goo.gl/HG2j5T

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/292114/

Comments